Flooring-square.



UNITED STATES PATEN T FFTCE.

MAGNU'S NELSON, OF NEW YORK, N. Y.

FLOORING-SQUARE. .E

To all whom it may concern:

Be it known that I, MAGNUS NnLsoN, a citizen of the United States,residing at the city of New York, in the borough of Bronx and State ofNew York, have invented new and useful Improvements in Flooring-Squares, of which the following is a speer fication.

This invention relates to a square particularly adapted for use infloorlaying, the ob ject of the invention being to provide a simple,convenient and effective device which may be employed for measuring offand obtaining the different lengths and distances from the flooringboard to the trim or casing, for obtaining the different angles andsquaring oft the lines.

A further object of the invention is to provide an instrument of thischaracter which is strong and durable and constructed to enter corners,recesses and other places difficult of access, so that correctmeasurements at all points may be obtained.

The invention consists of the features of construction, combination andarrangement of parts, hereinafter fully described and claimed, referencebeing had to the accompanying drawing, in which Figures 1 and 2 areopposite face views of a flooring square embodying my inven tion. .Fig 3is a vertical longitudinal ser tion through the square. Fig. 4t `is avertical transverse section thereof.

Referring to the drawing, 1 designates the blade of the square, which issegmentally cut away at each end to provide a central abutting edge 2and oppositely disposed points 3, which admit of the blade being morefirmly arrested against an irregular surface. The cut away portions arealso adapted to receive jutting projections on a door casing or thelike, whereby the points may be better inserted into recesses onopposite sides thereof in measuring off distance from baseboards,casings, trimmings, etc., inserted in crevices, recesses and otherplaces difficult of access, so that measurements at different pointsaround the surface of a room in which the floor is to be laid may beobtained. Each face of the blade is pro vided with opposite scales 6 and7 extending along its side edges, each scale being graduated to inchesand fractions thereof, the series of designating ordinals of the scalesextending in opposite directions, so that either side edge of eitherface of the blade Specification of Letters Patent.

Application led February 24, 1912.

Patented Aug. 6, 1912. serial No. 679,737.

may be employed in measuring. Each face of the blade is also providedwith a central longitudinal scale 8 extending between the measuringedges 2, which scale is also graduated to inches and fractions thereofand is in the form of a double scale, with rows of ordinals extending inopposite directions. 'This construction allows measurements to be madealongl either side edge or the center of either face of the blade, forconvenience in measuring distances at different points, the cut out endsof the blade permitting measurements to be made from recesses or juttingprojections, as will be readily understood.

A block 9 is slidably mounted on the blade for cooperation therewith inlaying oit angles and squaring lines. This block may be made of anysuitable material and is provided with a transverse slot 10 for theextension of the blade therethrough. One face of the block is providedwith a concavity 11 in which is fitted or countersunk a strengthen ingplate 19. secured thereto by screws 13. This plate is formed with acentral screwthreaded opening llt to receive a set screw 15 which isadapted to engage the blade and clamp the block thereto.

The longitudinal side edges of the block are provided with reinforcingplates 16, formed with slots 17 in alinement with the slot 10, whichslots 17 are of somewhat less depth and width than said slot 10.Arranged within the top and bottom of the slot 10 are wear plates 1S and19, the plate 18 having an opening 2O therein for the passage of thescrew 15, so that said screw may bear against the blade l. Guide'strips20 extend transversely at the ends of the slot 10 and are formed ontheir inner faces with reduced portions or ribs 21 which extend betweenand support and hold the plates 18 and 19 in spaced relation, saidplates and strips being held from lateral displacement by thereinforcing plates 16.

It will be understood from the foregoing description that the block 9may be adjusted along the blade 1 and clamped at any point thereto, andthat the described mode of constructing the block allows said block tobe made of ber, wood or other suitable material. The plate l2 not onlyreinforces the body of the block, but supports the clamping screw 1,5while the plates 18 and 19 and strips 2O form wear surfaces which ridein contact with and insure a smooth and even fit between the plate andblock, ease of movement in sliding the block and a reduction in theamount of wear on the block from the frequent adjustment thereof.

Having thus described the invention, what I claim as new is 1. Ameasuring device comprising ablade cut away at each end to provide acentral transverse abutting edge and projecting side indicating points,said blade having Ina-rginal scales cooperating with the indicatingpoints and having their designating ordinals extending in oppositedirections respectively, and a central scale coperating with theabutting edges and having designating ordina-ls extending in bothdirections, a block adjustable on said blade, and means for clampingsaid block in position.

2. A measuring instrument comprising a scale blade, a block providedwith a transverse slot for passage of the blade, transverse strips atthe end portions of said slot provided with inwardly projecting ribs,wear plates supported and spaced by said ribs, a strengthening platecountersunk in one face of the block, a set screw carried thereby andprojecting through one of the wear plates for engagement with the blade,and reinforcing plates at the sides of the block having slotsregistering with the transverse slot thereof and of less dimensions thansaid transverse slot.

ln testimony whereof I affix my signature in presence of two witnesses.

MAGNUS NELSON. Witnesses PAUL EGEBERG, OSCAR JOHNSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

